Mobenus a



NITED TATES.

ATENT MORENUS A. NIOHOLSON,'OF RIOHWOOD, OHIO, AS SIGNOR OF ONE-FOURTH TO FRANCIS M. DIOKS, OF SAME PLACE.

COOKING-STOVE.

SPECIFICATION forming part of Letters Patent No. 259,575, dated June 13, 1882,

Application filed March 11, 1882. (Model.)

T all whom it may concern Be it known that I, MoRENUs A. NIcHoL- SON, of Richwood, in the county of Union and State of Ohio, haveinvented a new and useful Improvement in Cooking Stoves and Ranges,

of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification,

1o in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of my improvement. Fig. 2 is a sectional rear elevation of the same, taken through the line a; w,

Fig. 1. Fig. 3 is a sectional plan view of the same, taken through the line yy, Fig. 1. Fig. 4 is a sectional plan view of the same, taken through the line a 2, Fig. 1.

The object of this invention is to facilitate the operation of cookie gin the ovens of cocking stoves and ranges and lessen the time required therefor.

A represents a cooking stove or range. B is the fire-box, from which the smoke and other products of combustion pass through the space 0 between the top plate of the stove A and the top plate of the oven D, and enter and pass down the side flues, E, to the chamber F in the lower part of the stove. At the forward 0 end of the chamber F the smoke and other products of combustion pass down into and pass back through the chamber G,just above the bottom plate of the stove. At the rear end of the chamber G the smoke and products of combustion enter the lower end of the center flue, H, from the upper end of which they pass into the smoke pipe or chimney. In the inner side of the upper part of the center flue, H, is an opening, I, from the space or cham- 0 her 0. The opening I is closed by a damper, J, attached to a rod, K, which passes out through a side plate of the stove, so that the damper J can be readily opened and closed. When the damper J is opened the smoke and other products of combustion pass through the opening I into the upper part of the center flue, H, and thence into the smoke-pipe, giving a direct draft when required-as, for instance, when starting a fire. When the damper J is closed the smoke and other products of combustion pass down through the side flues, E, and reach the smoke-pipe through the chambers F G and center flue, H, as hereinbefore described.

As thus far described there is nothing new 5 in the construction.

L is a cold-air pipe, which passes in through the wall of the building and leads into a chamber, M, formed in the lower part-of the stove between the flue-chambers F and G, where the cold air is heated. The chamberM is divided by partitions N O, forming zigzag passages I Q R. The partitions N extend from the inner wall of the center flue, H, nearly to the front wall of the chamber M, forming a passage, 1, and the partitions O, which are placed midway between the partitions N and the side walls of the stove A, and extend from the front wall of the chamber M nearly to the rearwa1l,forming passages Q R. The cold-air current from pipe L enters the chamber M in the rear part of the passage P, and at the forward end of the said chamber M divides and passes around the ends of the partitions 0, passes back through the passages Q, passes around the rear ends of the partitions O, and passes forward through the passages R, so as to be thoroughly heated whenit reaches the said passages R. From the passages R four (more or less) pipes, S, pass up through the chamber F and open into the chamber T formed between the said flue-chamber F and the oven 1).

In the top plate, U, of the chamber T, which is also the bottom plate of the oven D, are formed upward ofisets U, the sides of which are finely perforated to allow the heated air to enter the oven D. Upon the tops of the offsets U rests a finely-perforated plate, V, which serves as asupport for the articles being cooked. With this construction the heated air is diso tributed through all parts of the oven D, so as to come in contact with the articles being cooked and greatly hasten the operation of cooking. Anotheradvanta-geof thisconstruction is that the heated air acts first upon the 5 surfaces of the articles being cooked and prevents the moisture and juices from escaping from the said articles, thus making the said articles more palatable and healthful.

In the upper part of the rear wall of the too oven D are formed openings W,leading into the center flue, H, through which the heated air from the said oven can be allowed to escape into the center flue, H, and pass into the stove pipe or chimney. The openings V are closed by a damper, X, attached to a rod, Y, which passes out through a side plate of the stove A, so that the said damper can be readily operated. When the dam per X is opened its ends rest upon inclined ledges Z formed upon or attached to the walls of the stove, to serve as stops to prevent the said damper from bein g opened too far.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent--- 1. In a cookingsiove or range, the combination, with the smoke and distributing chainbers, of the partitioned hot-air chamber arranged directly beneath the oven, as and for the purpose described.

.2. In a cooking stove or range, the combination, with the oven D and thesmoke-chamhers F Gr, of the air-heating chamber M and the air-distributing chamber T, the inlet-pipe L, the connecting-pipes S, and the plate U, having perforated offsets U, substantially as herein shown and described, whereby cold air is heated and introduced into the oven, as set forth.

3. In a cooking stove or range, the plate U, interposed between the oven D and the airdistributing chamber T, and provided with upward offsets U, having perforated sides, substantially as herein shown and described, whereby the heated air is introduced into the oven, as set forth.

4:. In a cooking stove or range, the combination,.with the plate U, provided with upward offsets U, having perforated sides, of the perforated plateV,substantially as herein shown and described, whereby'the heated air is distributed through the oven, as set forth.

MORENUS ALMANZO NICHOLSON.

\Vi tnesses:

S. S. GARDINER, W. T. JONES. 

